0000934999-13-000001.txt : 20130118 0000934999-13-000001.hdr.sgml : 20130118 20130118164932 ACCESSION NUMBER: 0000934999-13-000001 CONFORMED SUBMISSION TYPE: 13F-HR PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20121231 FILED AS OF DATE: 20130118 DATE AS OF CHANGE: 20130118 EFFECTIVENESS DATE: 20130118 FILER: COMPANY DATA: COMPANY CONFORMED NAME: DF DENT & CO INC CENTRAL INDEX KEY: 0000934999 IRS NUMBER: 521045317 STATE OF INCORPORATION: MD FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 13F-HR SEC ACT: 1934 Act SEC FILE NUMBER: 028-03691 FILM NUMBER: 13538060 BUSINESS ADDRESS: STREET 1: 2 EAST READ STREET STREET 2: 6TH FLOOR CITY: BALTIMORE STATE: MD ZIP: 21202 BUSINESS PHONE: 4108372544 MAIL ADDRESS: STREET 1: DF DENT & CO INC STREET 2: 2 EAST READ ST CITY: BALTIMORE STATE: MD ZIP: 21202 13F-HR 1 december2012.txt DECEMBER 2012 13F UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON DC 20549 FORM 13F FORM 13F COVER PAGE Report for Calendar Year or Quarter Ended: December 31, 2012 Check here if Amendment [] Amendment Number: This Amendment (Check only one): [] is a restatement. [] adds new holdings entries. Investment Manager Filing this Report: Name: D. F. Dent and Company, Inc. Address: 2 East Read Street, 6th Floor Baltimore, MD 21202 13F File Number: 028-03691 The investment manager filing this report and the person by whom it is signed hereby represent that the person signing the report is authorized to submit it, that all information contained herein is true, correct and complete, and that it is understood that all required items, statements, schedules, lists and tables, are considered integral parts of this submission. Person Signing this Report on Behalf of Reporting Manager: Name: Daniel F. Dent Title: President Phone: 410-837-2544 Signature, Place and Date of Signing: Report Type (Check Only One): [X] 13F Holdings Report [] 13F Notice [] 13F Combination Report FORM 13F SUMMARY PAGE Report Summary: Number of Other Included Managers: 0 Form 13F Information Table Entry Total: 192 Form 13 F Information Table Value Total (thousands): 3040063 List of Other Included Managers: None FORM 13F INFORMATION TABLE VALUE SHARES/ SH/ PUT/ INVSTMT OTHER VOTING AUTHORITY NAME OF ISSUER TITLE OF CLASS CUSIP (x$1000) PRN AMT PRN CALL DSCRETN MANAGERS SOLE SHARED NONE ------------------------------ ---------------- --------- -------- -------- --- ---- ------- ------------ -------- - ------- -------- 3D SYSTEMS CORP COM 88554D205 112713 2112710 SH Sole 2112710 3M CO COM 88579Y101 443 4767 SH Sole 4767 ABBOTT LABORATORIES COM 002824100 1326 20247 SH Sole 20247 ACTUANT CORP A COM 00508X203 2720 97467 SH Sole 97467 ADTRAN INC COM 00738A106 29265 1497719 SH Sole 1497719 ALTERA CORP COM 021441100 401 11658 SH Sole 11658 AMERICAN PUBLIC EDUCATION INC COM 02913V103 23324 645745 SH Sole 645745 AMERICAN TOWER CORP COM 03027X100 72434 937417 SH Sole 937417 AMGEN INC COM 031162100 92 1066 SH Sole 1066 ANADARKO PETROLEUM CORP COM 032511107 542 7300 SH Sole 7300 ANSYS INC COM 03662Q105 153946 2286107 SH Sole 2286107 APACHE CORP COM 037411105 24616 313580 SH Sole 313580 APPLE COMPUTER INC COM 037833100 1041 1956 SH Sole 1956 APPLIED MINERALS COM 439 285200 SH Sole 285200 ATRION CORP COM 049904105 158 807 SH Sole 807 AUTOMATIC DATA PROCESSING COM 053015103 1846 32425 SH Sole 32425 AUTOZONE INC COM 053332102 89 250 SH Sole 250 BERKSHIRE HATHAWAY INC COM 084670108 938 7 SH Sole 7 BERKSHIRE HATHAWAY INC. DEL CL COM 084670702 2194 24454 SH Sole 24454 BHP BILLITON LTD COM 088606108 20 250 SH Sole 250 BRISTOL MYERS SQUIBB CO COM 110122108 68 2100 SH Sole 2100 CANADIAN NATIONAL RAILROAD CO COM 136375102 910 10000 SH Sole 10000 CAPITAL ONE FINANCIAL COM 14040H105 1623 28009 SH Sole 28009 CARBO CERAMICS INC COM 140781105 90 1150 SH Sole 1150 CARMAX INC COM 143130102 747 19900 SH Sole 19900 CATERPILLAR INC COM 149123101 161 1800 SH Sole 1800 CELGENE CORP COM 151020104 54591 695688 SH Sole 695688 CHEVRON CORP COM 166764100 1398 12930 SH Sole 12930 CHICAGO BRIDGE & IRON CO NV COM 167250109 13 280 SH Sole 280 CISCO SYSTEMS INC COM 17275R102 2642 134467 SH Sole 134467 CLEAN HARBORS INC COM 184496107 39867 724728 SH Sole 724728 COCA COLA CO COM 191216100 952 26260 SH Sole 26260 COLFAX CORP COM 194014106 242 6000 SH Sole 6000 COLGATE-PALMOLIVE COM 194162103 523 5000 SH Sole 5000 COMCAST CORP - A COM 20030N101 577 15450 SH Sole 15450 COMCAST CORP - A - SPL COM 20030N200 3489 97138 SH Sole 97138 CONCHO RESOURCES INC COM 20605P101 45107 559917 SH Sole 559917 CONCUR TECHNOLOGIES, INC. 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